Fig. 2.—Plan of the Acropolis, &c., of Constantine’s city.

Dr. Mordtmann, by a study of the whole of the city area and its entire circumvallation as we have it to-day, in comparison with the written descriptions, has laid a firmer grasp on the problem. Labarte, he points out, was chiefly misled by a confusion of the buildings in the Forum of Constantine and those in the Forum Augusteum—a mistake elaborated in some respects by Paspates. Labarte thus placed the porphyry column of Constantine, which still marks the site of the former, together with other buildings that were quartered about it, all within the Augusteum, which last he rightly identified with the present open space to the south-west of S. Sophia. Texier, who in 1834 made a careful study of the ancient city, rightly distinguished the two fora.[14]

[Fig. 2] will assist in making clear our views as to the transformation of the Acropolis under Constantine. The Byzantine brick walls which now inclose the old Serai Labarte regarded as of late work, and we think the style of the building would very well bear out Paspates’ opinion that they were erected by Michael Palaeologus. The excavation for the railway exposed some remains of a wall near O in our [Fig. 1] which Paspates describes as “built of large stones as much as 10 feet long by 2½ broad, and 1½ thick.”[15] The rest of the seaward wall still forming the substructure of the retaining wall of the sea-front of the old Serai, and running in a direction parallel to the Hippodrome, is also of stone. This wall is probably ancient or follows the course of the ancient Acropolis inclosure which is described by Dion Cassius as “built on rising ground and projecting into the sea.... The walls are very strong, formed of large squared stones bound together with copper, and the inside is so strengthened with earth and buildings that the whole seems one thick wall.”[16]

The late Anonymous author edited by Banduri says that the wall of ancient Byzantium commenced at the Golden Horn near the gate of S. Eugenius to pass along by the Golden Milestone.[17] We place no reliance on the Anonymous for early history, but there is much to confirm Mordtmann’s view that an ancient wall occupied this position and that the Milion—which the Anonymous says was the land gate—was situated upon its course and formed indeed the entrance from the Street of Columns. This wall, which Mordtmann says passed on the land side of the old Serai in front of the modern museum (Tchenli Kiosk) where there is a high retaining wall, and continued to the west of S. Sophia not far from the narthex, we consider must be that which formed the landward inclosure of the Acropolis. The fourth region of the city, Mordtmann says, was separated from the second by the rock of the Acropolis and this wall. We are confirmed in our acceptance of the other wall described by Paspates as the seaward wall of the Acropolis, not only because it is built against the steep escarpment of the rock, but by finding that in the division of the city into the wards or regions of the Notitia the first ward exactly comprised the space between the wall and the sea; the second region contained the old Acropolis itself, with a triangle of lower ground at the north against the Golden Horn, where was probably the sea gate; while the third was divided from the fourth by the great way which left the Milion gate on the old landward wall of the Acropolis. Such pre-existing features naturally formed the boundaries of the wards.

We now give from the Notitia Dignitatum the descriptions of the first four regions of the fourteen into which Constantine’s city was divided, which will show how Constantine occupied the old areas with the royal and public quarters of his new city. Twelve regions were included within the walls, and two others were formed by the suburbs of Blachernae and Galata.

Region I.

Contains the house of Placidia Augusta; the house of most noble Marina; the Baths of Arcadius; 27 streets or alleys; 118 houses; 2 porticoes; 15 private baths; 4 public cornmills; 15 private cornmills; 4 terraces of steps. It is under one curator, who looks after the whole region; it has 1 vernaculus, a slave (or messenger) for all regions; 25 collegiati, who are selected from different Guilds (Corporati), and help at fires; and 5 street wardens, who watch the city at night.

Region II.

Gradually rises with a gentle ascent beginning from the smaller theatre, and then descends abruptly to the sea. It contains the Great Church; the Ancient Church; the Senate; the Tribunal built with porphyry steps; the Baths of Zeuxippus; the theatre; the amphitheatre; 34 streets or alleys, 98 houses; 4 large porticoes; 13 private baths; 4 private cornmills; 4 terraces of steps. It had also 1 curator, 1 vernaculus; 35 collegiati, 5 street wardens.